Costa Rica's vast rainforests and rich biodiversity are a result of the tropical and subtropical climate of this Central American nation.
Temperatures in Costa Rica vary primarily with elevation, not with seasons. The coastal areas remain warm year-round, while the mountain regions tend to have a more temperate climate.
Costa Rica has two seasons: the rainy season, "winter," lasts from May to mid-November; the dry season, "summer," lasts from mid-November to April.